Heel turner drive



a. 1'. wA'T'r HEEL TURNER DRIVE Filed April 19. 1938 March 26, 1940.

-3 Sheets-Sheet 1 G. T. WATT HEEL TURNER. DRIVE March 26, 1940,

5 Sheets-Sheet 2 Filed April 19, 1938 I. HHHH H IHWM LNHHH H H H H Hflu/Jena? GeOVj (T 3 l 4/ "Ma nay 2s March 26,

34 Ill Filed April 19, 1938 G. 1". WATT HEEL TURNER DRIVE e 3Sheets-Sheet 3 II'IIJ. Z

[Me/Liar George T Watt .(Qwww,

AMM/S countershaft positioned on the floor several feet tion of Spindlerotation would be wrong. Cross belts turned one way and the other onethe ope curethe desired conipactness. To solve this dif,-' 2p alignmentwith the turner, and requires consid it being the insides of these beltswhich engage 30- I able for. this class of machines. This assembly theheel turner is driven in the required direction; 35

.40 over that occupied by the turner itself rem description adrawjngsin'which 40.

Patented Mar. 26, 1 940 r I I UNITED sT rEsPf TENT O F CE HEEL TURNERDRIVE George T. Watt, Havel-hill, Mass., assignor to Pope MachineryCorporation, Haverhill. Mass, a corporation of Massachusetts iApplication April 19, 1938, Serial No. 202,915

8 Claims. (Cl. I2--87) y This invention relates to a power-transmissionmachine spindles and the motor and idler shaftsb system for driving apair of spindles by means of I Short pulley center distances aresatisfactory a single motor and certain novel combinations becausestraight belts are used instead of quarof belts. It relates morespecifically to a drive 'ter-turn orcross belts as in the prior art. 5for spaced spindles having parallel axes of rotae A preferred embodimentof the invention ine 5H tion, the drive being such that their rotationis in eludes the use of so-called V and double-V belts, oppositedirections. For purposes of illustration, running in multiple onsuitably grooved pulleys. the inventionherein shall be illustrated andde Short pulley center distances are advantageous scribed as embodiedin-a machine for turningv for thistype of belt. The right-hand spindle,wood heels. This machine is the type shown in seen by the operator;performs, in the heel turner 19; United States Letters Patent No.2,039,695,,, illustrated; the major portionof the heel-turning grantedtome on May 5, 1936. a operation. This spindle is driven with straight Inthese heel turning machines-it is required multiple V belts inconventional manner, the verthat the two verticalsp-indles be powerdriven tical motor being wired to rotate in'a'clockwise in oppositedirections,'that is, in directions such direction as viewed from above,which produces 15 that the blades of v the cutter heads turn intherequireddirection of rotation for the right towards each other as theoperator faces them. handturner spindle. Itis obvious that the left-Most of the heel 'turnersnow in use are beltyhand spindle cannot bedriven from the same 4 driven by means of a horizontal -motor-drivenmotor by straight belt drive because the dir'eoin back of andindependent of the turning ma'-- belts would give the correct directionof rotation,

chine. This spaced positioning isnecessary for but crossbelts areimpractical at the high speeds f v satisfactory belt action and life.Two quarterused in this class of machines, especially withv turn belts,usually of fabric, having one of the y the short pulley center distancesnecessary. toseposite way, result in the required directions of.ficulty,I have utilized these-called double-V belts rotation for the twospindles. This system of which are adapted for 'pulleyengagement ontwopower transmission is bulky and difiicult toin opposite sides or facesofthe beltsfwhich for stall, requires care and skill in securing properconvenience may be called the insideand outside,

erable'floor space. y v I the driven spindle pulley. By means ofanli'dler It is an object of this invention to provide a pulley, theoutsides of these belts are broughtv new and more efi'icient power andpower-transinto driving engagement with the motor pulley. missionassembly than has heretofore'been availrin p a manner 'such thattheflefthandspind1e1 f as built in as a part ofthe machine itself sothat I of rotation. i I

itrequires no time orattention at thetime of These" arrangements anddevices, including Plant installation Thus, P m alinement means ofadjustment and other features, are is built o the machine and extra f orspace more fully'set forth and disclosedin the followquired. y a Figure.1 is an isometric View of a heel-turning It 15 furthe? P C of the t v lmachine partly cutaway to show the V and dou I vide new combinations of.certaintypes of combelt drive- 7 A I mercial' belts am. adjustmentstherefor which Figur 1 ma i m of the willyield better results with .lessmaintenance bait arrangemnt gi z gf iggfi gi g ig ig gi fgfj fiflfi aFigure 3'isja fragmentary isometric view offth e. single vertical motormounted within the regupulley. the series of t in F g lar turningm'achine'frame onan adjustably fixed e therewlthv v it sub-frame whichalso carries an idler belt pulley. fi ur 4 s o the'shape of the double-Vbelt. 50 Thisyidler-pulley is rotatable about a vertical. F 5 W shapethevybelt- I f spindle which is eccentrically mounted for hori- Figure515 a, p l plan View Of the machine. zontal adjustment relative to'themotor spindle. 1 gu 7 is a diagrammatic p n ew Of 1711!? Said sub-frameis adjustable in a horizontal dipulleys with flat canvas belts thereon,rection to vary the distance between theturning Figure 8. i a frag en ryelev n a u 55- I on which is pivotally mounted a work holding jack 30.The construction and operationof the jackare well known and need not,therefore, be

specifically described herein, it being sufficient to say that the jackis adapted to support a heel.

blank 32 which can be engaged by either of the cutters by swinging thejack about the axis of a the crane shaft 24. This movement of the jacktoward the cutters is limited by adjustable collars on stops 34 engagedby a cam plate 35 carried by the jack.

" The pulley l! of the left-hand spindle is driven,

The movements of the jack in the cutting operation are controlled by thecam plate Elli and by upper and lower tracks 38 and tt supported I011and extending about the frame. Briefly, the upper track controls thetilting of the heel blanks through'the agency of a rider 42 on the track38, and the lower track controls the elevation of the heel blank throughthe agency of a rider 44 engaging the lower track ill, all of which iswell understood in machines of this type.

The pulley iii of the right-hand spindle is driven by a multiple V beltEii which is looped around the pulley l6 and a pulley b2 mounted on theshaft of a motor 5 5, both of these pulleys being engaged by the insidefaces of the belt.

as indicated in Figure 2, by a suitable double-vi belt56 which is loopedaround the pulley H and an idler pulley 58 mounted behind the motorpulley 52 in such a manner that the belt 56 enpulley 58, a heavy memberor shaped like an I-beam, is mounted within the gages the motor pulleyoutside ofits loop and the outside faces of the multiple belt 56 areheld against a substantial arc of the pulley 52, suflia All cient forsatisfactory driving engagement. of these pulleys are suitably groovedin the usual manner to receive V belts, Each of the belts is thusarranged to form a single closed loop, and'none of the belts is crossed.In other words, the belts are so arranged that a line taken at any pointacross the outer face of a belt at right angles to the lengthwisedimension at that point will be parallel to the axes of thedriv'ing anddriven spindles. This is not true of crossed belts.

For the support of the motor 54 and theidler main frame II]. I Thissub-frame is supported on horizontal trackways 62 and is secured inadjusted position'by locking bolts {54 which pass through horizontalslots 66 in the. side members.

of the mainframe l1]. This permits adjustment of the motor pulley andthe idler pulley together toward or away from the cutter spindles.v Themotor is secured to'the sub-frame fill as by bolts M. A bracket H3 forthe idler pulley is secured by bolts 18 to the other side of the member68.

A threaded shaft 68,1extends from thebracket 16 through a transversemember ll) of the main frame. A hand wheel 12 is in threaded engagementwith the shaft 68 and is held againstaxial movement by engagement withthe member 10 as indicated in Figure 6. When the locking bolts Alsocarried by the,

subsframe t l,-

64 for the member 60 are loose, the member 60 can be adjustively movedby rotation of the hand wheel 12. This results in simultaneousregulation of the tension of both setsof belts.

To provide for separate regulation of one set of belts, the idler pulley58 is mounted for independent adjustment relative tothe sub-frame 60. Tothis end the idler pulley shaft 80 is carried e'ccentrically by acylindrical member 82 which is rotatively adjustable in the bracket 76.A lockingscrew 84 secures the member 82 in any adjustfid position. Tofacilitate angular adjustment of the member 82, holes 8'6 are providedtherethrough to receive a rod or bar by which the member maybe turned.It is evident from Figure 6 that rotative adjustment ofthe member 32will shift the axis of the idler pulley 58 and will thus regulate thetension of the bolts 56 independently of the belts 50.

In place of the V belts and the double-V belts, equally good results maybe had from the use of ordinary fiat endles belts as illustrated inFigure 7. For this purpose, I preferably use fabric belts of three orfour inch width and in medium weight similar, except for length, tothose used on the quarter-turn drive from the horizontal.

countershaft hereinbefore described.

Certain embodiments of the invention having thus been described, what isclaimed as new and desired to'be secured by, Letters Patent is: V I 1.In a wood-heel shaping machine, a frame,

tween each of said spindlesand said motor so arranged that a linetakenat any point across the outer face of any belt at right anglestothe lengthwise dimension of the belt at that point will ,be parallelto the axes of the drivingand driven spindles. I

2. In a wood-heel shaping machine, a frame, a pair of cutter spindlesthereon, and means for rotating said spindlesat high speeds in oppositedirections, said means comprising a motor mountedwithin said machine,belt pulleys carried by saidspindles and said motor, a pair of beltshaving their inner faces engaging respective spindle pulleys, the innerface of one of said belts also "engaging the motor pulley, and means formaintaining the outer face of the other belt in engagement with saidmotor pulley.

3. In a wood-heel shaping machine, a frame, alpair of cutter spindlesthereon, and means for rotating said spindles at high speeds in oppositedirections, said means comprising a motor mountwith asubstantial arc ofsaid motor pulley.

4. In a wood-heel shaping machine including a frameand a pair ofvertical cutte spindles mounted at the front end of said frame, ahorizontally adjustable sub-frame mounted within said frame, drivingmeans mounted on. said subframe i and consisting of a single motor andan idler pulley, and belt connections between said spindles and saidmotor and idler pulley arranged to cause said spindles to rotate inopposite directionswhen said motor rotates.

5. In a Wood-heel shaping machine including a frame and a pair ofvertical cutter spindles mounted at the front end of said irameahorizontally adjustable sub-frame secured Within said frame, a motormounted on said sub-frame, beltpulleys carried" by said spindles andmotor, an idler pulley mounted onsaid sub-frame, a belt looped aroundone of said spindle pulleys and said motor pulley, and a second beltlooped around the other said spindle pulley and said idler pulley, saidpulleys being arranged so that said motor-pulley engages said secondbelt outside of its loop. l

6.111 a wood-heelshaping machine including a frame and a pair ofvertical cutterspindles mounted at the front end of said irame,ahorizontallyledjustable sub-frame secured within said frame, a drivinginenibenmounted on said subframe, belt connections between each of saidspindles and said driving member, means cooperating with said drivingmember and belt .to

cause said spindles to rotate in, opposite directions, means foradjustably shifting said sub-' irarne to vary the tension on both saidbelts simul- I taneously, and means for independently varying thetension on one of said beltsonly.

7; In a wood-heel shaping machine including a frame and a pair ofvertical cutter spindles mounted at the front end of said frame, ahorizontally adjustable sub-frame secured Within said frame, amotor-mounted on saidsub-frame, belt pulleys carried by said spindlesand motor, an idler pulley mounted on said sub-frame, a belt loopedaroundone of said spindle pulleys and i said motor pulley, a second beltlooped around the other said spindlepulley and said idler pulley,

said pulleys being arranged so that said motor pulley engages saidsecond belt outside of its loop, means for adjustablyshifting saidsub-frame to and means for'shifting said idler pulley'to vary thetension of said second belt only. "8. In a wood-heel shaping machinehaving a y frame and a pair of yertical cutter spindles thereon, pulleyson said spindles, an idler pulley mounted within said machine, adouble-V belt flooped around said idler pulley and one of said spindlepu1leys,a vertical motor mounted within the machine and having a. pulleyoutside of the loop of said belt but-:having driving engagement withvary the tension of both belts simultaneously,

a portion thereof, and a V belt looped around the 35 motor pulley andthe other spindlepulley.

' GEORGE T. WATI'.

